In the fall issue of V Magazine, Brad Pitt was asked about his split with Jennifer Aniston and this is what he had to say.
"I don't know how better to have handled it. My view was, this is no one's business in the end — at least in matters of the heart. So you need to protect all involved as much as possible. I don't know if that cooled things off or exacerbated them, but it was a thing I felt justly about at the time. Again, the thing guiding me then was you don't know how many days you have and you need life to be everything you want it to be. … Jen and I still maintain a deep friendship and have a lot of life together that isn't erased in any way."
So, if I'm reading this right, Brad is basically saying he didn't know how many days of life he had left, and he sure as hell wasn't going to spend the remaining ones he had with Jennifer Aniston. After he finishes throwing Jen under the bus, he pretends to pick her up by claiming they have a deep friendship and that no matter how many drugs Brad takes, he can remember much of their time together.